Issue #14720: sqlite3: Convert datetime microseconds correctly

Patch by Lowe Thiderman
diff --git a/Misc/ACKS b/Misc/ACKS
index 93c568c..c488644 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -990,6 +990,7 @@
 Mikhail Terekhov
 Richard M. Tew
 Tobias Thelen
+Lowe Thiderman
 Nicolas M. Thiéry
 James Thomas
 Robin Thomas